Year US Dollars, Sum Over Component Sub-periods 1995-01-01 14338730000.000000 1996-01-01 15106530000.000000 1997-01-01 16713240000.000002 1998-01-01 17344620000.000000 1999-01-01 18606110000.000000 2000-01-01 17157930000.000000 2001-01-01 15276310000.000000 2002-01-01 15498580000.000000 2003-01-01 14062940000.000000 2004-01-01 15138000000.000000 2005-01-01 15294190000.000000 2006-01-01 15397320000.000000 2007-01-01 19751250000.000000 2008-01-01 24064950000.000000 2009-01-01 25451500000.000000 2010-01-01 28321550000.000000 2011-01-01 43787270000.000000 2012-01-01 41940540000.000000 2013-01-01 48117770000.000000